+/** @class SubRipError
+ * @brief An error that occurs while parsing a SubRip file.
+ */
+class SubRipError : public FileError
+{
+public:
+ SubRipError (std::string, std::string, boost::filesystem::path);
+};
+
+class DCPError : public StringError
+{
+public:
+ DCPError (std::string s)
+ : StringError (s)
+ {}
+};
+
+class InvalidSignerError : public StringError
+{
+public:
+ InvalidSignerError ();
+};
+
+class ProgrammingError : public StringError
+{
+public:
+ ProgrammingError (std::string file, int line);
+};
+
+/** @class ExceptionStore
+ * @brief A parent class for classes which have a need to catch and
+ * re-throw exceptions.
+ *
+ * This is intended for classes which run their own thread; they should do
+ * something like
+ *
+ * void my_thread ()
+ * try {
+ * // do things which might throw exceptions
+ * } catch (...) {
+ * store_current ();
+ * }
+ *
+ * and then in another thread call rethrow(). If any
+ * exception was thrown by my_thread it will be stored by
+ * store_current() and then rethrow() will re-throw it where
+ * it can be handled.
+ */